Question

5. Which statement about the readily releasable pool of synaptic vesicles in incorrect? A. Its vesicles are released rapidly upon stimulation B. Its vesicles are docked and primed for release awaiting stimulation C. It constitutes the majority of vesicles in the synaptic terminal D. It is replenished with vesicles from the recycling pool under physiological conditions 6. Which statement(s) about the fovea is CORRECT? A. The fovea is located in the macula and responsible for central vision B. The fovea is the area on the retina responsible for highest visual acuity C. The fovea is the are of highest concentration of rod photoreceptors D. The fovea is the area with poorest color detection E. A and B 7. Which statement(s) about the structure of the retina is INCORRECT? A. The retina has a laminar/layered structure B. There are two main synaptic layers - the outer and inner plexiform layers C. Photoreceptor somas are located in the outer nuclear layer D. Axons of bipolar cells exit the retina at the optic disk E. B and D 8. Which statement about the functional connectivity in the retina is CORRECT? A. Photoreceptors synapse on horizontal and bipolar cells in the inner plexiform layer B. Bipolar cells make synaptic connections in both the outer and the inner plexiform layers C. Ganglion cells do not directly communicate with photoreceptors D. Horizontal cells synapse directly onto ganglion cells E. B and C

Answer 1

Answer no.5 - Correct option ③ The readily releasable Pool of synaptic vesicles, Each presynaptic bouton (knob) is densly packed with many vesicles, only small Practions of which are available for immediate release. readily releasable pool depend upon sizef probabily of vesicle release and other physiological factors. Many vesicles are docked f Primed, that some docked vesicles may not be part of RRP and that undocked vesicles can be contribute to RRB by rapid recruitment to unoccupied, molecularly activated ready forelease sitelo -> All methods of determining RRP require the qualitification of vesicles fusion or neurotransmittey release, when majority of vesicles are saturate at terminal synapse. then it get Chocked (Blocked) release of impulses.

Answer no. 6 => Correct option E It is a part of Retina . Here highest density of cone photo receptor which is responsible For coloured vision with highest visual acuity that responsible for central vision. * Here rod photoreceptor Completly absent.

Answer no. 7 Incorrect option - so, it is your Answer The ganglion cell axons form the optics nerve after they leave the eye. The optic disc represent the begining of optic nerve and the point where the axons of retinal ganglion cells comes together. The optic disc is also called the entry point for mayor blood vessels that supply blood to the retina.

Answer no.8 correct option -> ☺ As a part of retina, Bipolar cella exist between photoreceptor (rod cell cone cell) and ganglione cell. They act, directly of indiviectly to transmit signals from the Photoreceptors to the ganglion cell,